本文是在学习中的总结,欢迎转载但请注明出处:http://blog.csdn.net/pistolove/article/details/41452047 Implement strStr(). Returns the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack. Update (2014-11-02):The signature of the funct…

我在github有对PHP源码更详细的注解.感兴趣的可以围观一下,给个star.PHP5.4源码注解.可以通过commit记录查看已添加的注解. strpos mixed strpos ( string $haystack, mixed $needle [, int $offset = 0 ] ) 如果offset指定了,查找会从offset的位置开始.offset不能为负数. 返回needle第一次出现在haystack的位置.如果在haystack中找不到needle,则返回FALSE. n…

Implement strStr(). Returns the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack. Update (2014-11-02): The signature of the function had been updated to return the index instead of the pointer. If you still…

strstr函数:返回主串中子字符串的位置后的所有字符. #include <stdio.h> const char *my_strstr(const char *str, const char *sub_str) { ; str[i] != '\0'; i++) { int tem = i; //tem保留主串中的起始判断下标位置 ; while(str[i++] == sub_str[j++]) { if(sub_str[j] == '\0') { return &str[tem]…

Implement strStr(). Returns the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack. 1 class Solution(object): def strStr(self, haystack, needle): """ :type haystack: str :type needle: str :rtype: in…

Implement strStr(). Returns the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack. 注:直接看题目可能会有些偏差,因为容易认为 needle是一个字符,那就也太容易了,实则,haystack和needle都是字符串(注意是字符串不是数组) 解法思路: 暴力搜索: public class Solution { public int…

1. 讨论目标字符串若为空, 则返回-1: 资源字符串若为空, 则返回-1. 2.讨论目标字符串个数为零, 则返回0: 资源字符串个数为零, 则返回-1. 3. 插入旗帜来使第二循环的结束为有条件地返回(为true才返回, 为false则break跳到上循环继续). class Solution { /** * Returns a index to the first occurrence of target in source, * or -1 if target is not part of…

原型:char * strstr( char *haystack,  char *needle ) 用法:#include <string.h> 功能:在haystack中寻找needle第一次出现的位置(不比较结束字符NULL). 说明:返回指向第一次出现的needle位置的指针,如果没有找到则返回NULL.…

C语言函数 编辑 包含文件:string.h 函数名: strstr 函数原型:      extern char *strstr(char *str1, const char *str2); 语法: * strstr(str1,str2) str1: 被查找目标 string expression to search. str2: 要查找对象 The string expression to find. 返回值:若str2是str1的子串,则返回str2在str1的首次出现的地址:如果str2…

1 题目: Implement strStr(). Returns the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack. Update (2014-11-02):The signature of the function had been updated to return the index instead of the pointer. If you…